title: Capitate shortening osteotomy with vascularized bone grafting for the treatment of Kienböck's disease in the ulnar positive wrist.
abstract: OBJECTIVE
  Decompression surgery combined with revascularization surgery may provide better results than either alone in the treatment of Kienböck's disease. This study describes our experience with capitate shortening combined with vascularized bone grafting for the treatment of Kienböck's disease in ulnar neutral and ulnar positive variant patients.
  
  
  METHODS
  Between 1996 and 2004, patients diagnosed with Lichtman stage II or stage IIIA Kienböck's disease with ulnar neutral or ulnar positive wrists were enrolled in this prospective study and had capitate shortening osteotomy with concurrent vascularized bone grafting. Preoperative and postoperative clinical evaluation included wrist arc of motion, grip strength, and overall satisfaction score. Preoperative and postoperative wrist radiographs and preoperative magnetic resonance imaging were performed. Radiographic measurements of preoperative and postoperative ulnar variance and carpal height ratio were also evaluated. The average follow-up period was 41 months (range, 26-65 months).
  
  
  RESULTS
  Fourteen patients with an average age of 25 years (range, 16-39 years) were studied. The results show significant improvement in grip strength (58% to 78% of the normal side), satisfaction score, and satisfactory arc of motion. The average carpal height ratio was maintained. Average time to osteotomy healing was 48 days.
  
  
  CONCLUSIONS
  Capitate shortening osteotomy combined with vascularized bone graft is effective in the treatment of ulnar-positive Kienböck's disease prior to the onset of radiocarpal arthrosis.
authors.affiliation: Department of Orthopaedics and Sports Medicine, University of Washington Hand Center, University of Washington, Seattle, WA 98195, USA.
authors.forename: Thanapong
authors.initials: T
authors.lastname: Waitayawinyu
authors.forename: Simon H
authors.initials: SH
authors.lastname: Chin
authors.forename: Shai
authors.initials: S
authors.lastname: Luria
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Trumble
mesh_terms: D000293:Adolescent; D000328:Adult; D016025:Bone Transplantation / Q000379:methods; D051224:Capitate Bone / Q000000981:diagnostic imaging / Q000601:surgery*; D015331:Cohort Studies; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010020:Osteonecrosis / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D011446:Prospective Studies; D011884:Radius / Q000098:blood supply* / Q000637:transplantation; D016059:Range of Motion, Articular; D020127:Recovery of Function; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014457:Ulna / Q000000981:diagnostic imaging / Q000473:pathology; D014955:Wrist Joint / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery*; D055815:Young Adult